From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001
From: root <root@artemis.panaceas.org>
Date: Fri, 25 Dec 2015 04:40:36 +0000
Subject: initial_commit

---
 arch/arm/mach-omap2/board-zoom-debugboard.c | 118 ++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 arch/arm/mach-omap2/board-zoom-debugboard.c

(limited to 'arch/arm/mach-omap2/board-zoom-debugboard.c')

diff --git a/arch/arm/mach-omap2/board-zoom-debugboard.c b/arch/arm/mach-omap2/board-zoom-debugboard.c
new file mode 100644
index 00000000..6402e781
--- /dev/null
+++ b/arch/arm/mach-omap2/board-zoom-debugboard.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2009 Texas Instruments Inc.
+ * Mikkel Christensen <mlc@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/serial_8250.h>
+#include <linux/smsc911x.h>
+#include <linux/interrupt.h>
+
+#include <plat/gpmc.h>
+#include <plat/gpmc-smsc911x.h>
+
+#include <mach/board-zoom.h>
+
+#define ZOOM_SMSC911X_CS	7
+#define ZOOM_SMSC911X_GPIO	158
+#define ZOOM_QUADUART_CS	3
+#define ZOOM_QUADUART_GPIO	102
+#define QUART_CLK		1843200
+#define DEBUG_BASE		0x08000000
+#define ZOOM_ETHR_START	DEBUG_BASE
+
+static struct omap_smsc911x_platform_data zoom_smsc911x_cfg = {
+	.cs             = ZOOM_SMSC911X_CS,
+	.gpio_irq       = ZOOM_SMSC911X_GPIO,
+	.gpio_reset     = -EINVAL,
+	.flags		= SMSC911X_USE_32BIT,
+};
+
+static inline void __init zoom_init_smsc911x(void)
+{
+	gpmc_smsc911x_init(&zoom_smsc911x_cfg);
+}
+
+static struct plat_serial8250_port serial_platform_data[] = {
+	{
+		.mapbase	= ZOOM_UART_BASE,
+		.irq		= OMAP_GPIO_IRQ(102),
+		.flags		= UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ,
+		.irqflags	= IRQF_SHARED | IRQF_TRIGGER_RISING,
+		.iotype		= UPIO_MEM,
+		.regshift	= 1,
+		.uartclk	= QUART_CLK,
+	}, {
+		.flags		= 0
+	}
+};
+
+static struct platform_device zoom_debugboard_serial_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_PLATFORM,
+	.dev			= {
+		.platform_data	= serial_platform_data,
+	},
+};
+
+static inline void __init zoom_init_quaduart(void)
+{
+	int quart_cs;
+	unsigned long cs_mem_base;
+	int quart_gpio = 0;
+
+	quart_cs = ZOOM_QUADUART_CS;
+
+	if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {
+		printk(KERN_ERR "Failed to request GPMC mem"
+				"for Quad UART(TL16CP754C)\n");
+		return;
+	}
+
+	quart_gpio = ZOOM_QUADUART_GPIO;
+
+	if (gpio_request_one(quart_gpio, GPIOF_IN, "TL16CP754C GPIO") < 0)
+		printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
+								quart_gpio);
+}
+
+static inline int omap_zoom_debugboard_detect(void)
+{
+	int debug_board_detect = 0;
+	int ret = 1;
+
+	debug_board_detect = ZOOM_SMSC911X_GPIO;
+
+	if (gpio_request_one(debug_board_detect, GPIOF_IN,
+			     "Zoom debug board detect") < 0) {
+		printk(KERN_ERR "Failed to request GPIO%d for Zoom debug"
+		"board detect\n", debug_board_detect);
+		return 0;
+	}
+
+	if (!gpio_get_value(debug_board_detect)) {
+		ret = 0;
+	}
+	gpio_free(debug_board_detect);
+	return ret;
+}
+
+static struct platform_device *zoom_devices[] __initdata = {
+	&zoom_debugboard_serial_device,
+};
+
+int __init zoom_debugboard_init(void)
+{
+	if (!omap_zoom_debugboard_detect())
+		return 0;
+
+	zoom_init_smsc911x();
+	zoom_init_quaduart();
+	return platform_add_devices(zoom_devices, ARRAY_SIZE(zoom_devices));
+}
-- 
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